To mark our Parallels 7 review below, 9to5Mac and Parallels are teaming up to offer one of our readers a free copy of Parallels every day for the next week. At the end of the contest, which stretches into 2012, we’ll give one lucky winner* an iPad 2 or MacBook Air. Here’s how to play:

Retweet this post (“Free copies of Parallels Desktop 7 each day and a chance to win a MacBook Air/ iPad 2. RT to enter! http://bit.ly/vZrzDM”). Once per day limit. We’ll start again at midnight Pacific time each day.

Parallels will pick a winner and we’ll update daily via @ParallelsMac

The Prizes:

Grand Prize: New MacBook Air with Windows 7 Home Edition (or iPad 2 with Parallels Mobile), Parallels Desktop 7 for Mac and the Parallels Mobile app for iPad, iPhone and iPod touch